I remember in the early 70's an book that was banned at our school for reading it and that was titled "Chopper" (and one would get detention and have it confiscated by the teachers if found with it, it was a private boarding school, so that would explain the hard attitude towards the book! So the book was deemed must read amongst us boarders. the copy that went around got well thumbed, almost as much as a copy of playboy, Mayfair, or Men Only!!